mcp: bump sse timeout & add support for streamable http

[rockwotj]

5 seconds is too low for slow services

[Copilot]

Pull Request Overview

This PR raises the SSE client timeout to 30 seconds for slower services and adds support for a new StreamableHTTPMCPEndpoint to communicate over HTTP streaming with the same timeout.

• Increase SSE timeout in mcp_client to 30 seconds.
• Introduce StreamableHTTPMCPEndpoint class and handle it in mcp_client.
• Export StreamableHTTPMCPEndpoint in the package’s __init__.py.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
src/redpanda/agents/_mcp.py	Bumped SSE timeout, added StreamableHTTPMCPEndpoint and its branch in mcp_client.
src/redpanda/agents/init.py	Added StreamableHTTPMCPEndpoint to module exports.

Comments suppressed due to low confidence (1)

src/redpanda/agents/_mcp.py:145

• There’s no test coverage for the new StreamableHTTPMCPEndpoint branch in mcp_client. Consider adding unit tests to exercise this path.

elif isinstance(server, StreamableHTTPMCPEndpoint):

[Copilot]

Pull Request Overview

This PR bumps the SSE timeout to 30 seconds and adds support for streamable HTTP communication by introducing a new MCP endpoint.

• Bump SSE client timeout from the default to 30 seconds.
• Implement a new StreamableHTTPMCPEndpoint class using streamablehttp_client with a timedelta-based timeout.
• Update the module exports to include the new StreamableHTTPMCPEndpoint.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
src/redpanda/agents/_mcp.py	Added StreamableHTTPMCPEndpoint and updated mcp_client to support it.
src/redpanda/agents/init.py	Exported StreamableHTTPMCPEndpoint.